case "$PLATFORM" in
  'osx' )
    URL="https://swift.org/builds/swift-5.2-release/xcode/swift-5.2-RELEASE/swift-5.2-RELEASE-osx.pkg"
    ;;

  'ubuntu16.04' )
    URL="https://swift.org/builds/swift-5.2-release/ubuntu1604/swift-5.2-RELEASE/swift-5.2-RELEASE-ubuntu16.04.tar.gz"
    ;;

  'ubuntu18.04' )
    URL="https://swift.org/builds/swift-5.2-release/ubuntu1804/swift-5.2-RELEASE/swift-5.2-RELEASE-ubuntu18.04.tar.gz"
    ;;

  * )
    ;;
esac
